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Unified ISSU: Enhanced mode

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Unified ISSU: Enhanced mode

Devices with linecards installed can use a new ISSU option called enhanced mode. Enhanced mode eliminates packet loss during the unified ISSU process by running a second copy of the Junos software in standby mode ready to take over when software moves from an old image to a new one. Use the request system software in-service-upgrade package-name.tgz enhanced-mode command to use unified ISSU with enhanced mode, or the request system software validate in-service-upgrade package-name.tgz enhanced-mode command to verify that your device and target release are compatible with enhanced mode.
Product / Application Software Introduced Release
MX240 Junos OS 20.1R1
MX480 Junos OS 20.1R1
MX960 Junos OS 20.1R1
MX2008 Junos OS 21.2R1
MX2008 Junos OS 20.1R1
MX2010 Junos OS 21.2R1
MX2010 Junos OS 20.1R1
MX2020 Junos OS 21.2R1
MX2020 Junos OS 20.1R1